<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed under the Apache License, Version 2.0 (the "License");<a name="line.2"></a>
<FONT color="green">003</FONT>     * you may not use this file except in compliance with the License.<a name="line.3"></a>
<FONT color="green">004</FONT>     * You may obtain a copy of the License at<a name="line.4"></a>
<FONT color="green">005</FONT>     *<a name="line.5"></a>
<FONT color="green">006</FONT>     *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.6"></a>
<FONT color="green">007</FONT>     *<a name="line.7"></a>
<FONT color="green">008</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.8"></a>
<FONT color="green">009</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.9"></a>
<FONT color="green">010</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.10"></a>
<FONT color="green">011</FONT>     * See the License for the specific language governing permissions and<a name="line.11"></a>
<FONT color="green">012</FONT>     * limitations under the License.<a name="line.12"></a>
<FONT color="green">013</FONT>     */<a name="line.13"></a>
<FONT color="green">014</FONT>    package com.googlecode.jsendnsca;<a name="line.14"></a>
<FONT color="green">015</FONT>    <a name="line.15"></a>
<FONT color="green">016</FONT>    import java.io.IOException;<a name="line.16"></a>
<FONT color="green">017</FONT>    import java.util.concurrent.ExecutorService;<a name="line.17"></a>
<FONT color="green">018</FONT>    import java.util.concurrent.Executors;<a name="line.18"></a>
<FONT color="green">019</FONT>    <a name="line.19"></a>
<FONT color="green">020</FONT>    /**<a name="line.20"></a>
<FONT color="green">021</FONT>     * This sender does not block unlike the {@link NagiosPassiveCheckSender}.<a name="line.21"></a>
<FONT color="green">022</FONT>     * Instead it internally queues the passive check in an unbounded queue and has<a name="line.22"></a>
<FONT color="green">023</FONT>     * a single worker thread sending from the queue.<a name="line.23"></a>
<FONT color="green">024</FONT>     * &lt;p&gt;<a name="line.24"></a>
<FONT color="green">025</FONT>     * <a name="line.25"></a>
<FONT color="green">026</FONT>     * Any exceptions resulting from sending the passive check are output to<a name="line.26"></a>
<FONT color="green">027</FONT>     * standard error with a stack trace.<a name="line.27"></a>
<FONT color="green">028</FONT>     * &lt;p&gt;<a name="line.28"></a>
<FONT color="green">029</FONT>     * <a name="line.29"></a>
<FONT color="green">030</FONT>     * This sender is useful where you don't want to wait for the passive check to<a name="line.30"></a>
<FONT color="green">031</FONT>     * be sent and don't care if the sending fails<a name="line.31"></a>
<FONT color="green">032</FONT>     * &lt;p&gt;<a name="line.32"></a>
<FONT color="green">033</FONT>     * <a name="line.33"></a>
<FONT color="green">034</FONT>     * @author Raj Patel<a name="line.34"></a>
<FONT color="green">035</FONT>     * @since 1.2<a name="line.35"></a>
<FONT color="green">036</FONT>     */<a name="line.36"></a>
<FONT color="green">037</FONT>    public class NonBlockingNagiosPassiveCheckSender implements PassiveCheckSender {<a name="line.37"></a>
<FONT color="green">038</FONT>    <a name="line.38"></a>
<FONT color="green">039</FONT>        private final PassiveCheckSender sender;<a name="line.39"></a>
<FONT color="green">040</FONT>        private ExecutorService executor;<a name="line.40"></a>
<FONT color="green">041</FONT>    <a name="line.41"></a>
<FONT color="green">042</FONT>        /**<a name="line.42"></a>
<FONT color="green">043</FONT>         * Construct a new {@link NonBlockingNagiosPassiveCheckSender} with the<a name="line.43"></a>
<FONT color="green">044</FONT>         * provided {@link NagiosSettings}<a name="line.44"></a>
<FONT color="green">045</FONT>         * <a name="line.45"></a>
<FONT color="green">046</FONT>         * @param settings<a name="line.46"></a>
<FONT color="green">047</FONT>         *            the {@link NagiosSettings} to use to send the Passive Check<a name="line.47"></a>
<FONT color="green">048</FONT>         */<a name="line.48"></a>
<FONT color="green">049</FONT>        public NonBlockingNagiosPassiveCheckSender(NagiosSettings settings) {<a name="line.49"></a>
<FONT color="green">050</FONT>            this(new NagiosPassiveCheckSender(settings));<a name="line.50"></a>
<FONT color="green">051</FONT>        }<a name="line.51"></a>
<FONT color="green">052</FONT>    <a name="line.52"></a>
<FONT color="green">053</FONT>        NonBlockingNagiosPassiveCheckSender(PassiveCheckSender sender) {<a name="line.53"></a>
<FONT color="green">054</FONT>            this.sender = sender;<a name="line.54"></a>
<FONT color="green">055</FONT>            this.executor = Executors.newSingleThreadExecutor();<a name="line.55"></a>
<FONT color="green">056</FONT>        }<a name="line.56"></a>
<FONT color="green">057</FONT>    <a name="line.57"></a>
<FONT color="green">058</FONT>        /*<a name="line.58"></a>
<FONT color="green">059</FONT>         * (non-Javadoc)<a name="line.59"></a>
<FONT color="green">060</FONT>         * <a name="line.60"></a>
<FONT color="green">061</FONT>         * @see<a name="line.61"></a>
<FONT color="green">062</FONT>         * com.googlecode.jsendnsca.sender.INagiosPassiveCheckSender#send(com.googlecode<a name="line.62"></a>
<FONT color="green">063</FONT>         * .jsendnsca.sender.MessagePayload)<a name="line.63"></a>
<FONT color="green">064</FONT>         */<a name="line.64"></a>
<FONT color="green">065</FONT>        public void send(MessagePayload payload) throws NagiosException, IOException {<a name="line.65"></a>
<FONT color="green">066</FONT>            executor.execute(new NonBlockingSender(payload));<a name="line.66"></a>
<FONT color="green">067</FONT>        }<a name="line.67"></a>
<FONT color="green">068</FONT>    <a name="line.68"></a>
<FONT color="green">069</FONT>        /**<a name="line.69"></a>
<FONT color="green">070</FONT>         * Sets the backing executor to use if you do not want to use the default<a name="line.70"></a>
<FONT color="green">071</FONT>         * executor which is a single thread executor.<a name="line.71"></a>
<FONT color="green">072</FONT>         * &lt;p/&gt;<a name="line.72"></a>
<FONT color="green">073</FONT>         * You may want to use a custom executor in environments where you want to<a name="line.73"></a>
<FONT color="green">074</FONT>         * be in control of the used thread pools.<a name="line.74"></a>
<FONT color="green">075</FONT>         * <a name="line.75"></a>
<FONT color="green">076</FONT>         * @param executor<a name="line.76"></a>
<FONT color="green">077</FONT>         *            the custom executor to use<a name="line.77"></a>
<FONT color="green">078</FONT>         */<a name="line.78"></a>
<FONT color="green">079</FONT>        public void setExecutor(ExecutorService executor) {<a name="line.79"></a>
<FONT color="green">080</FONT>            this.executor = executor;<a name="line.80"></a>
<FONT color="green">081</FONT>        }<a name="line.81"></a>
<FONT color="green">082</FONT>    <a name="line.82"></a>
<FONT color="green">083</FONT>        /**<a name="line.83"></a>
<FONT color="green">084</FONT>         * Shutdown the backing executor.<a name="line.84"></a>
<FONT color="green">085</FONT>         * &lt;p/&gt;<a name="line.85"></a>
<FONT color="green">086</FONT>         * To be used when your application has been shutdown and you want to<a name="line.86"></a>
<FONT color="green">087</FONT>         * cleanup all resources such as if you run in a hot deployment environment.<a name="line.87"></a>
<FONT color="green">088</FONT>         */<a name="line.88"></a>
<FONT color="green">089</FONT>        public void shutdown() {<a name="line.89"></a>
<FONT color="green">090</FONT>            executor.shutdown();<a name="line.90"></a>
<FONT color="green">091</FONT>        }<a name="line.91"></a>
<FONT color="green">092</FONT>    <a name="line.92"></a>
<FONT color="green">093</FONT>        private class NonBlockingSender implements Runnable {<a name="line.93"></a>
<FONT color="green">094</FONT>    <a name="line.94"></a>
<FONT color="green">095</FONT>            private MessagePayload payload;<a name="line.95"></a>
<FONT color="green">096</FONT>    <a name="line.96"></a>
<FONT color="green">097</FONT>            public NonBlockingSender(MessagePayload payload) {<a name="line.97"></a>
<FONT color="green">098</FONT>                this.payload = payload;<a name="line.98"></a>
<FONT color="green">099</FONT>            }<a name="line.99"></a>
<FONT color="green">100</FONT>    <a name="line.100"></a>
<FONT color="green">101</FONT>            public void run() {<a name="line.101"></a>
<FONT color="green">102</FONT>                try {<a name="line.102"></a>
<FONT color="green">103</FONT>                    sender.send(payload);<a name="line.103"></a>
<FONT color="green">104</FONT>                } catch (Exception e) {<a name="line.104"></a>
<FONT color="green">105</FONT>                    e.printStackTrace();<a name="line.105"></a>
<FONT color="green">106</FONT>                }<a name="line.106"></a>
<FONT color="green">107</FONT>            }<a name="line.107"></a>
<FONT color="green">108</FONT>        }<a name="line.108"></a>
<FONT color="green">109</FONT>    }<a name="line.109"></a>




























































</PRE>
</BODY>
</HTML>
